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Statut Confirmé
Série LPA
Domaines cond-mat
Date Lundi 16 Décembre 2019
Heure 13:30
Institut LPENS
Salle Conf IV
Nom de l'orateur Paravicini-Bagliani
Prenom de l'orateur Gian-Lorenzo
Addresse email de l'orateur
Institution de l'orateur ETH Zürich
Titre Magneto-transport in 2DEG ultra-strongly coupled to a Cavities Vacuum-Field
Résumé According to quantum mechanics, an electromagnetic mode without real photon excitations is non-trivial. It gives rise to vacuum electric field fluctuations. Despite averaging to zero over time, these fluctuations are responsible for the spontaneous emission, the Lamb shift and the Casimir effect. Using Landau polaritons, we demonstrate experimentally that the vacuum electric field acts on electron transport. The DC magneto- resistance of the cavity-embedded 2D electron gas is changed due to the coupling to vacuum. Intriguingly, our experimental platform allows to tune the vacuum mode in-situ, while observing the response in the resistance.
Numéro de preprint arXiv
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